Automobile companies have been the biggest gainers on the bourses this year. The BSE Auto index scaled a 52-week high last week, with Maruti Suzuki, Hero MotoCorp and TVS Motor gaining 24-50 per cent year-to-date. Mahindra & Mahindra (M&M) and Ashok Leyland have been top gainers with a 17-18 per cent increase in their stock prices since January despite the overhang of a change in emission norms and a tough March quarter.
A part of stock price run-up for original equipment manufacturers (OEMs), or automakers, may also be credited to the hopes of a normal monsoon this year. Earnings and sales volume growth for OEMs may remain muted in the first half of FY18 for various reasons, including dealer-level adjustments for goods and services tax (GST), and the ability to implement a price hike.

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